Leica Microsystems MZ7.5 Application Note

Brand: Leica Microsystems

Model: MZ7.5

Category: Microscopes

Type: Application Note

This manual is also suitable for

MZ16 A

Leica Microsystems MZ7.5

The Leica Microsystems MZ7.5 is a high-performance stereo microscope that offers exceptional optical quality, versatility, and ease of use. With its advanced features and modular design, the MZ7.5 is the ideal choice for a wide range of applications in life science, materials science, and industrial inspection.

The MZ7.5 features a high-resolution optical system that provides bright, clear images with excellent depth of field. The microscope's long working distance and large field of view make it ideal for observing and manipulating small objects. The MZ7.5 also offers a wide range of magnification options, from 6.3x to 50x, allowing you to choose the perfect magnification for your specific application.

Leica Microsystems MZ7.5

ErgoHandbook™, Leica Microsystems Ltd – Section 6 – Why invest in ergonomics? 1

6. Why invest in ergonomics?

The status and value of ergonomics in a company

can be determined by answering the following questions:

Does the organization have problems with: yes no

– increasing manufacturing costs

– increasing costs for maintenance and repair

– decreasing product quality

– susceptibility to production breakdowns

– keeping to deadlines

– customer satisfaction

Does the organization want to:

– improve safety at work

– reduce illness-related absence (e.g. for back problems)

– motivate

– improve the well-being of employees

Is the organization planning to:

– restructure the workplaces

– install new facilities

– introduce new manufacturing sequences and equipment

If several of the questions were answered with "yes", there is probably a need for ergonomic improvements in the organization, and

the next steps are as follows:

– Using the questionnaire in chapter 10, pinpoint the weaknesses of the workplace and analyze them.

– Formulate goals.

– Decide what action to take.

– Calculate the investment required and compare.

ErgoHandbook™, Leica Microsystems Ltd – Section 6 – Why invest in ergonomics?2

What are the benefits of

ergonomics?

1. Well-being in the work place

If all aspects of the workplace, inclu-

ding the nature of the work, its orga-

nization, the environment and the

space available, are in accordance

with the abilities of the individual, then

the conditions for maximum work

satisfaction have been met.

2 Less illness-related absences

Where workplaces have been ergono-

mically designed there are less acci-

dents and bodily complaints, so there

are less days lost.

3 Higher productivity

A human-engineered workplace is the

basis for increased motivation and

performance by its user.

4 Better business results

The holistic inspection of the workpla-

ce and the optimum implementation of

ergonomic expertise lead to better

business results.

Why invest in the Leica ergonomics

program?

The investment in the sensible planning of microscopy work

stations brings benefits to employee and employer alike if all

involved (user, planner, work-science specialist, medical spe-

cialist and microscope manufacturer) cooperate to introduce

measures to reduce specific stresses. As microscope manu-

facturers, we can design our instruments so as to minimize the

stresses on the user and therefore to promote better

working. Leica has therefore given more thought than any

other stereomicroscope manufacturer to this subject and has

created a range of ergonomic accessories (see section 5). It is

now up to the organization to make use of the opportunities

offered. The higher initial investment in ergonomic conditions

pays off in healthier, more contented employees, and also in

higher productivity and improved performance.

ErgoHandbook™, Leica Microsystems Ltd – Section 6 – Why invest in ergonomics? 3

The Leica ergonomics program – employee and

employer both gain

The Leica ergonomics program

✔

prevents a forced posture, tiredness, reduced performance and bodily

discomfort.

✔ offers better, healthier viewing conditions through the options of adapting the

eyepoint individually and of changing the posture at any time.

✔ reduces static exertion during precision work, because the arms and hands

can be supported.

✔ improves visual work, because the high-quality optical system does not sub-

ject the eyes to the strain of accommodation.

✔ enables the user to concentrate and work for long periods at a time.

The advantages for the company:

✔ Higher productivity

✔ Better quality

✔ Lower costs

✔ Less absenteeism

✔ Greater safety

✔ More reliable

✔ Competitiveness

✔ Better business results.

ErgoHandbook™, Leica Microsystems Ltd – Section 6 – Why invest in ergonomics?4

ErgoHandbook™, Leica Microsystems Ltd – Section 7 – Dimensions with Leica ergonomics modules 1

7. Dimensions

with Leica ergonomics modules

ErgoHandbook™, Leica Microsystems Ltd – Section 7 – Dimensions with Leica ergonomics modules2

Leica MS5 with incident-light stand Leica MS5 with transmitted-light stand

MS5

Binocular tube with 45° viewing angle

ErgoModule™ 50mm and binocular

tube with 45° viewing angle

ErgoModule™ 25 - 80mm and binocu-

lar tube with 45° viewing angle

ErgoWedge™ 5° - 25° and binocular

tube with 45° viewing angle

ErgoHandbook™, Leica Microsystems Ltd – Section 7 – Dimensions with Leica ergonomics modules 3

Leica MZ6 with incident-light stand Leica MZ6 with transmitted-light stand

Binocular tube with 45° viewing angle

ErgoModule™ 50mm and binocular

tube with 45° viewing angle

ErgoModule™ 25 - 80mm and binocu-

lar tube with 45° viewing angle

ErgoWedge™ 5° - 25° and binocular

tube with 45° viewing angle

ErgoHandbook™, Leica Microsystems Ltd – Section 7 – Dimensions with Leica ergonomics modules4

Leica MZ75

with incident-light stand Leica MZ7

with transmitted-light stand

MZ75

1.0x Plan

MZ75

1.0x Plan

MZ75

Binocular tube with 45° viewing angle

ErgoTube™ 10° - 50°

ErgoWedge™ 5° - 25° and binocular

tube with 45° viewing angle

Trinocular photo- / video tube

ErgoHandbook™, Leica Microsystems Ltd – Section 7 – Dimensions with Leica ergonomics modules 5

Leica MZ95

with incident-light stand Leica MZ9

with transmitted-light stand

MZ95

1.0x Plan

MZ95

1.0x Plan

MZ95

Binocular tube with 45° viewing angle

ErgoTube™ 10° - 50°

ErgoWedge™ 5° - 25° and binocular

tube with 45° viewing angle

Trinocular photo- / video tube

ErgoHandbook™, Leica Microsystems Ltd – Section 7 – Dimensions with Leica ergonomics modules6

Leica MZ125

with incident-light stand Leica MZ12

with transmitted-light stand

MZ125

1.0x Plan

MZ125

1.0x Plan

MZ125

Binocular tube with 45° viewing angle

ErgoTube™ 10° - 50°

ErgoWedge™ 5° - 25° and binocular

tube with 45° viewing angle

Trinocular photo- / video tube

ErgoHandbook™, Leica Microsystems Ltd – Section 7 – Dimensions with Leica ergonomics modules 7

Leica MZAPO with incident-light stand Leica MZAPO with transmitted-light stand

MZAPO

1.0x Planapo

MZAPO

ErgoTube™ 10° - 50°

Trinocular photo- / video tube

ErgoHandbook™, Leica Microsystems Ltd – Section 7 – Dimensions with Leica ergonomics modules8

ErgoHandbook™, Leica Microsystems Ltd – Section 8 – Want to know more about ergonomics?

8. Want to know more about

ergonomics?

References

– Baker J.R.: Experiments on the function of the eye in light microscopy.

– Barthelemy J.: Les aides optiques en micro-électronique.

– Beck R., Janke, H., Üllenberg H.-K.: Verbesserung der arbeitsphysiologischen Bedingungen am Mikroskop.

– Bergkvist H., Carlsson L., Stoot M.: Arbets- och arbetsplatsutforming vid mikroskoparbete.

– Conrady P., Krueger H., Zülch J. et al.: Untersuchung der Belastung bei Lupen- und Mikroskopierarbeiten.

– Drury, C.G., Bhatnager, V.: Microscope inspection standards.

– Dubois-Poulsen A.: Rappel sur les principales fonctions visuelles mises en jeu lors d’un travail sous binoculaire.

– Elias R., Cail F.: Travail sous binoculaires: Astreintes visuelles et posturales.

– Emanuel, J.T., Glonek, R.J.: Ergonomic approach to productivity improvement for microscope work.

– Fischer, J.F., Wick, J.L.: Ergonomic improvements to a microscope workstation.

– Fox C.H., Bahr G.F.: Relieving muscle fatigue and eyestrain in microscopy.

– Grandjean, Prof Etienne: Fitting the Task to the Man. A classic practitioner's handbook in ergonomics

– Grandjean Etienne: Physiologische Arbeitsgestaltung.

– Haines Helen, McAtamneyLynn: Applying ergonomics to improve microscope work.

– Helander M.G., Grossmith E.J., Prabhu P.: Planning and implementation of microscope work.

– Helander M.G., Prabhu P.: Ergonomic design of microscope workplaces.

– ILO: Encyclopedia of Occupational Health and Safety

– Imbert J.-P.: Les aides optiques dans l’industrie électronique.

– Konietzko Johannes, Heinrich Dupuis et al.: Handbuch der Arbeitsmedizin.

– Krueger H., Conrady P., Zülch J.: Work with magnifying glasses.

– Krueger H., Conrady P.: Untersuchung zur Ergonomie der Sehbedingungen bei Mikroskoparbeit.

– Krueger H., Conrady P.: Der Einsatz von Lupen in der Industrie.

– Krueger H., Conrady P., Zülch J.: Arbeitsmedizinische Probleme an Arbeitsplätzen mit Mikroskopen.

– Krueger H.: Arbeit mit Sehhilfen.

– Lee K.S., Waikar A.M., Aglazadeh, F., Tandon, S.: An electromyographic investigation of neck angles for

microscopists.

– Lee K.S., Waikar A.M., Wu L.: Physical stress evaluation of microscope work using objective and subjective

methods.

– Lee K.S., Humphreys, L.A.: Physical stress reduction of microscope operators.

– Leod D. Mc., Baimon R.E.: Microscope and eye fatigue.

– Mattas R.B., Townsend J.C., Leibowitz H.W.: Some effects of chromostereopsis on stereoscopic performance:

Implications for microscopes.

– Methling D.: Bestimmen von Sehhilfen.

– Methling D., Fälker F.: Sehanforderungen und Leistungsvermögen an speziellen Arbeitsplätzen in der

Mikroelektronik.

– Meyer J.-J.: L’évaluation de la charge visuelle et des risques pour la vue lors de l’utilisation intensive d’un

microscope binoculaire.

– Olcerst R.B.: Microscopes and ocular infections.

– Olsson A.: Ergonomi i mikroskoparbete.

– Ostberg, O., Moss, E.C.: Microscope work - ergonomics problems and remedies.

ErgoHandbook™, Leica Microsystems Ltd – Section 8 – Want to know more about ergonomics?2

– Pawlak, Böhme: Arbeiten mit Sehhilfen.

– Richards O.W.: Instrument myopia - microscopy.

– Robinowitz M., Bahr G.P., Fox C.H.: Relieving muscle fatigue and eye strain in microscopy.

– Rohmert W., Haider E., Hecker C., Mainzer J., Zipp P.: Mikroskopiertätigkeit bei visueller

Kontrolle und Reparatur von Leiterplatten, Keramikfolien, Mikrochips.

– Schober H.A.W., Dehler H., Kassel R.: Accommodation during observations with optical

instruments.

– Schweizerische Unfallversicherungsanstalt: Ergonomie. Erfolgsfaktor für jedes Unternehmen.

– Söderberg I., Calissendorff S., Elofsson S., Knave B., Nyman K.G.: Investigation of visual strain

experienced by microscope operators at an electronics plant.

– Söderberg I., Calissendorff S., Elofsson S., Knave B., Nyman K.G.: Mikroskoparbete

– Zoz N.E., Kuznetov J.A.: Etat de l’appareil d’accommodation visuelle lors du travail au

microscope.

ErgoHandbook™, Leica Microsystems Ltd – Section 8 – Want to know more about ergonomics? 3

Periodicals (paper and electronic)

– ACM Transactions on Computer-Human Interactions (TOCHI)

– Applied Ergonomics (Journal)

– COMPLEXITY INTERNATIONAL - an Electronic Journal of Complex Systems Research

– CSERIAC GATEWAY newsletter

– Ecological Psychology

– Ergonomics

– Ergonomics Abstracts

– Ergonomics Journal

– Ergonomic News

– Ergonomics that Work

– ErgoTalk

– ErgoWeb

– Folgenlos, Zeitschrift für sozioökonomische Systemanalyse und Folgenabschätzung

– Human Factors

– Human Factors and Ergonomics in Manufacturing (Journal), John Wiley & Sons, Inc.

– Human Factors and Ergonomics Society home page

– IEA Ergonomics International

– IEEE Transactions on Systems, Man, and Cybernetics

– IIE Solutions (Magazine)

– Industrial Hygiene News

– Industrial Safety & Hygiene News

– interactions (ACM)

– International Encyclopedia of Ergonomics and Human Factors, Taylor & Francis, Ltd.

– International Journal of Cognitive Ergonomics (Journal)

– International Journal of Human-Computer Studies

– International Journal of Industrial Ergonomics

– International Journal of Man-Machine Studies

– Journal of Occupational and Environmental Medicine (Magazine)

Modern Job Safety & Health (Looseleaf)

Newsletter for IIE Ergonomics and work measurement society.

Occupational Ergonomics (Journal)

– Occupational Hazards

– Occupational Health & Safety

– Occupational Health & Safety News (Newsletter)

– OH&S Canada

– Psycoloquy (ftp-Archive)

– Safety and Health

– Scandinavian Journal of Work, Environment & Health

– Science

– SIGCHI Bulletin

– Society for Work Science News (Newsletter)

The International Journal of Occupational Safety and Ergonomics, Central Institute for Labour Protection Warszawa

– Thesis - science and technology

– Workplace Ergonomics

http://ergoweb.com/Pub/ewhome.shtml ergoweb

http://www.ergonomics.com.au/index.html#Contents Ergonomics Australia On-Line

http://www.ergonomics.com.au/ergolinks.htm Includes very many links to ErgoInfos

http://www.osha.gov/index.htm OSHA Occupational Safety & Health Administration

ErgoHandbook™, Leica Microsystems Ltd – Section 8 – Want to know more about ergonomics?3

ErgoHandbook™, Leica Microsystems Ltd – Section 9 – Agencies 1

9. Agencies

Listed according to country

World wide

– World Health Organization (WHO)

USA

– ADA (Americans with Disabilities Act) Document Center

– Bureau of Labor Statistics

– Crew System Ergonomics Information Analysis Center

(CSERIAC)

– Department of Health & Human Services (DHHS)

– Environmental Protection Agency (EPA)

– The Federal Aviation Administration (FAA)

– FAA Office of Chief Scientific and Technical

Advisor for Human Factors

– FAA Technical Center Human Factors Laboratory (HFL)

– FAA/OAM Aviation Maintenance & Inspection

– NASA

– NASA-Ames Research Center, Human Factors Activities

– NASA Langley Research Center,

Human Engineering Methods Research Laboratory

– NASA Technical Reports Server

– National Institutes of Health (NIH)

– National Institute for Occupational Safety and Health (NIOSH)

– OSHA Web (U. S. Department of Labor’s Occupational Safety

and Health Administration)

– U. S. Department of Energy’s Environment, Safety and Health

(ES&H) Technical Information Services

– ATSDR Toxic Substance Registry

Europe

– European Space Agency (ESA)

– ESA Microgravity Database

– ESA Publications

Germany

– Forschungsgesellschaft für angewandte Naturwissenschaften

e.V. (FGAN)

– Forschungsinstitut für Antropotechnik (FAT)

Finland

– Finnish Institute of Occupational Health

– National Research and Development Centre for Welfare and

Health (STAKES)

Sweden

– Swedish National Institute for Working Life (NIWL) (ex

Swedish National Institute of Occupational Health)

Japan

– Advanced Telecommunications Research Laboratories (ATR),

Kyoto, Japan)

– Agency of Industrial Science and Technology (MITI), National

Institute of Bioscience and Human-Technology, Ergonomics

and Human-Technology

Canada

– Canadian Centre for Occupational Health and Safety

– Defence and Civil Institute of Environmental Medicine

(Canada), Human Factors Division

ErgoHandbook™, Leica Microsystems Ltd – Section 9 – Agencies2

Associations

– International Ergonomics Association (IEA, Sweden)

– International Ergonomics Association (IEA, USA)

– International Society for Ecological Psychology (ISEP)

– European Association for Cognitive Ergonomics

– The Ergonomics Society (United Kingdom)

– The Ergonomics Society of Australia

– Human Factors and Ergonomics Society

– The Human Factors and Ergonomics Society at SUNY Buffalo (UB)

– New England Chapter of the Human Factors and Ergonomics Society

– Cognitive Engineering and Decision Making Technical Group (CEDM-TG)

– HFES Special Interest Group on Virtual Environments

– ACM

– ACM Special Interest Group on Computer-Human Interaction (SIGCHI)

– American Industrial Hygiene Association (AIHA)

– Optical Society of America (OSA)

– Society of Photo-Optical Instrumentation Engineers (SPIE)

– IEEE

– IEEE’s Systems, Man, and Cybernetics Society

– Society for Information Display (SID)

– Gesellschaft für Arbeitswissenschaft (GfA)

– Gesellschaft für Informatik (GI)

– Fachausschuß 2.3 Ergonomie in der Informatik

– Fachgruppe (FG) 2.3.1 Software-Ergonomie

– REFA-Verband

– Verband Deutscher Elektrotechniker e.V. (VDE)

– Verein Deutscher Ingenieure (VDI)

– Deutsche Gesellschaft für Psychophysiologie und ihre Anwendung e.V. (DGPA)

– Deutsche Forschungsgemeinschaft (DFG)

–Österreichische Arbeitsgemeinschaft für Ergonomie (ÖAE)

ErgoHandbook™, Leica Microsystems Ltd – Section 10 – Questionnaire about the ergonomics arrangement of the workplace 1

10. Questionnaire about

the ergonomic arrangement of the

workplace

This questionnaire is intended

for use by persons responsible

for planning workplaces to

ensure maximum efficiency. It

will help as a check list to

ensure that no important

aspects are neglected.

The questionnaire is based on

material in the following two

documents, with modifications:

– Untersuchung der Belastung

bei Lupen- und Mikrosko-

pierarbeiten. Conrady P.,

Krueger H., Zülch J. et al

(this document contains a

detailed questionnaire)

– Physiologische Arbeitsge-

staltung. Etienne Grandjean.

Part 1: Personal data

Sex

Age

Are you right-handed / left-handed?

Do you wear spectacles?

Do you wear spectacles when using the microscope?

Do you smoke?

Part 2: Organization of work

Tasks

1. Job (assembly, inspection, analysis, other)

2. Main activity:

3. Subsidiary activity:

4. Do you use a microscope / stereomicroscope ?

5. Were you trained to use the above instrument before you started to use it ?

6. Working posture (sitting, standing, bent)

7. Does the work involve a high level of dexterity, attention and perception ?

8. Does the way that the work is organized (shift work, continuous work for long

periods, work at fixed times) cause stress?

ErgoHandbook™, Leica Microsystems Ltd – Section 10 – Questionnaire about the ergonomics arrangement of the workplace2

Physical exertion

9. Is the work heavy ?

10. Do you have to lift heavy objects ?

11. Is the weight of the objects reasonable ?

12. Do you use stress-minimizing postures when lifting and carrying objects ?

13. Do you have to repeatedly introduce the object beneath the microscope ?

14. Does the object remain stationary while it is being observed ?

15. Is intensive static exertion involved ?

16. Are stressful holding operations involved ?

17. Can the holding of objects be made easier with handrests ?

18. Can objects be held in mechanical devices ?

19. Is intensive dynamic exertion involved ?

20. Is the work less than continuous ?

21. Is the work carried out effectively ?

Working time, breaks in work

22. How long have you been working at this workstation ?

23. For how many hours each day on average do you work at the microscope ?

24. Do you often have to look down the microscope continuously for more than one or two hours ?

25. Do you have to look into the microscope for a short time but at regular intervals ?

26. How often do you have to leave your workplace (to deal with something else or to find out about something) ?

(e.g. 3-5 times an hour / 1-2 times a day)

27. Do you often have a break to relax ?

28. Are there enough / not enough compulsory work breaks to enable you to relax ?

29. Are the work breaks of appropriate length and at appropriate times ?

30. Would it be useful to have additional work breaks ?

31. Would flexitime be an advantage ?

32. Is the lunch break long enough ?

Monotony

33. Is your work at the microscope nearly always the same ? Would you call it monotonous ?

34. Do you generally stay in one posture while working at the microscope ?

35. Does the repetitive work force you to adopt an uncomfortable posture ?

36. How long at a time do you spend on each item ?

37. Would new working techniques (e.g. job rotation or the addition of other duties) reduce the monotony ?

38. Does the arrangement and organization of the workplace allow social contact ?

Shift work

39. Are there day shifts and night shifts ?

40. Does the existing shift system permit night-shift work for short periods ?

41. How often during the year are there free days during the normal working week (Monday - Friday) ?

42. Are acceptable conditions available for sleep during the day ?

Requirements for precision work

43. Is the precision work carried out with visual inspection ?

44. Does the precision work require a long period of training ?

45. Are all requirements met for easily acquiring an automatic routine ?

46. Are the directions and sequences of the movements required all natural ?

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Leica Microsystems MZ7.5 Application Note

Brand: Leica Microsystems

Model: MZ7.5

Category: Microscopes

Type: Application Note

This manual is also suitable for

MZ16 A

Leica Microsystems MZ7.5

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Leica Microsystems MZ7.5 Application Note

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Leica Microsystems MZ7.5 Application Note

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